title: A recyclable enzymatic biodiesel production process in ionic liquids.
abstract: Immobilized Candida antarctica lipase B suspended in ionic liquids containing long alkyl-chain cations showed excellent synthetic activity and operational stability for biodiesel production. The interest of this process lies in the possibility of recycling the biocatalyst and the easy separation of the biodiesel from the reaction mixture. The ionic liquids used, 1-hexadecyl-3-methylimidazolium triflimide ([C(16)MIM][NTf(2)]) and 1-octadecyl-3-methylimidazolium triflimide ([C(18)MIM][NTf(2)]), produced homogeneous systems at the start of the reaction and, at the end of the same, formed a three-phase system, allowing the selective extraction of the products using straightforward separation techniques, and the recycling of both the ionic liquid and the enzyme. These are very important advantages which may be found useful in environmentally friendly production conditions.
authors.affiliation: Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Chemistry, University of Murcia, P.O. Box 4021, E-30100 Murcia, Spain.
authors.forename: Teresa
authors.initials: T
authors.lastname: De Diego
authors.forename: Arturo
authors.initials: A
authors.lastname: Manjón
authors.forename: Pedro
authors.initials: P
authors.lastname: Lozano
authors.forename: José L
authors.initials: JL
authors.lastname: Iborra
mesh_terms: D055162:Biocatalysis; D056804:Biofuels; D002175:Candida / Q000201:enzymology; D002851:Chromatography, High Pressure Liquid; D004951:Esterification; D008049:Lipase / Q000378:metabolism*; D059027:Recycling
chemical_list: D056804:Biofuels; D008049:Lipase